Improvement in bubble-blowing apparatus



1). GREENWALT. Bubble Blowing Apparatus.

Pate nted June 3,1879;

WITNESSES:

' INVENTOR:

ATTORNEYS.

NVFETERS. PHOTOAJTHOGRAPHER. WASHINGTON. D O

UNITED STATES PATENT ()FFIGE.

DANIEL GREENWALT, ()F MILLEBSVILLE, PENNSYLVANIA.

IMPROVEMENT IN BUBBLE-BLOWING APPARATUS.

Specification forming part of Letters Patent No. 216,17 6, dated June 3,1879; application filed April 4,1879.

To all whom it may concern:

Be it known that I, DANIEL GREENWAL'I, of Millersville in the county ofLancaster and State of Pennsylvania, have invented a new and ImprovedBubble-Blower, of which the following is a specification.

Figure l is a sectional elevation of the de vice. Fig. 2 is a plan ofthe same. Fig. 3 is a view of the glass tube, partly in section, used inoperating the device.

Similar letters of reference indicate corre spondingparts. y

The object of this invention is a device that may be used as aphilosophical instrument, or for blowing soap-bubbles.

The invention consists of the stand A, sliding in the upright tube ofwhich is the tube B, about whose upper extremity is centrally .fastenedthe cup 0.

D is a bent tube, preferably of glass that may be used in connectionwith the device. E is a flexible tube that may also be sometimes usedwith advantage.

The device may be operated by pouring into the cup 0 enough strongsoap-suds--s0ap and water-with a little glycerine added, if desirable,to fill the cup nearly to the top of the tube B. Then, if one dips thelarger end of the tube D into the contents of the cup and blows throughit, a bubble will be formed over the end of the tube B. The tube D maythen be withdrawn and the size of the bubble be diminished by suckingthrough the tube E that is attached to the lower end of B, or beincreased by blowing through it.

With the solution in the cup, as before stated, bubbles may be formed byplacing the end of the tube D down over the orifice of the tube B, andthen blowing through the tube B or its attachment E; but the better wayis to start the bubble with the tube D.

The value of this device as a toy can be easily understood andappreciated by the young and the old; but it is of still greater valuein certain scientific investigations and pursuits. Wishing to experimenton the explosion of gases one can form the bubbles in one of the Waysindicated, and then introduce the gas into it through the tube E.

The solution remaining in the cup and floating or supporting the bubblemakes it more lasting than it would he were it supported on a drysurface.

All the childish and all the philosophical experiments that can be madewith soap-bubbles can be better made with this device than with anyother with which I am acquainted.

Having thus fully described my invention, I claim as new and desire tosecure by Letters Patent 1. The within-described device for blowingbubbles consisting of stand A, provided with a hollow standard,and thesliding tube B, and the cup G,secured centrally to the said sliding tubenear its upper end, substantially as herein shown and described. 2. Incombination with the stand A, tube B, and cup 0, the auxiliary tubes Dand E, substantially as herein showuaud described.

3. A bubbleblower with a cup for holding the bubble solution centrallysecured around the blowing-tube near one end of it, substantially asherein shown and described.

DANIEL GREEN WALT.

Witnesses ABRAHAM D. HOSTETTER, A. B. LEV'ENITE.

